3D printed binding post covers -
Covers for 19mm spaced banana-plug binding posts, for safety
3D printed electric car contactor cover -
Contactor cover for the Luka EV electric car
3D printed filament spool holder -
Ball-bearing equipped holder for 3D printing filament
Kossel XL 3D printed extruder motor holder -
Improved mount for the Kossel XL geared motor
Kossel XL 3D printed workpiece cooling fan holder -
Improved holder for a head-mounted workpiece cooling fan
SIM card miniSIM to microSIM conversion, adapter -
Adapter and cutting mask for conversion between miniSIM and microSIM card form factor
3D printed molecular models -
Tips and tricks for printing molecules from plastic filament
3D printed teamaker filter holder -
Adapter to hang a teamaker filter from the kitchen cupboard
Android SSH/SCP -
Using Dropbear for Android ssh and scp
Art - Enameling -
Small jewels made from enameled sheet metal
Art - fused-glass earrings -
Earrings made from flame-fused beads
Art - Glass and aluminium -
Small jewels made from molten glass and aluminium sheet
Art - glass and copper spider -
A small statue of a spider, made of stranded copper wire and melted-on glass beads
Art - Tiffany-technique pendants -
Jewels from colored glass and stones
Uranium glass jewels -
Uranium glass pendant and earrings
Entropy Factory -
a simple hardware audio noise generator for cryptography-grade entropy generation for /dev/random
Hardware project. Ethernet loopback with periodical opening/closing.
Geiger on a Plane -
In-flight radiation level measurement
Uranium ore prospecting -
Sourcing some mildly radioactive stones
an extremely trivial bitmap font editor. 8x14 Latin2 enhanced-readability Czech font included.
Laser engraved candy -
Tests of laser cutting of pressed sugar candy
a simple POP3 proxy for Linux/xinetd for disabling Microsoft™ Worms™. Renames executable attachments as they pass through. As effective as simple.
Google Earth -
Google Earth utilities and overlays
HTML form decoder. Extracts fields from a web form.
HM2007 - a PDF of a speech-recognition chip|
100x scope probe -
High-voltage oscilloscope probe
Shelf rack -
Hardware project. Shelf rack for hanging 19" rack equipment to a wall.
3D printer server and dev environment -
Configuring a Kossel XL as a standalone printserver
3D printer Kossel XL assembly -
Notes and experiences with a Kossel XL assembly
Ammo box computer -
Hardware project. A portable dual-power computer built in an ammo box
ATX bench power adapter -
Hardware project. Adapter for an ATX power supply.
Krizik RT2,5 Variac Mod -
Modification of a variac for easier use in lab and field
Banana Pi CAN bus adapter -
Hardware project. TJA1050-based CAN interface for Banana Pi.
EX-FH25 power supply -
Hardware project. External power supply for a Casio Exilim EX-FH25
Cellphone-friendly gloves mod -
Hardware project. Small modifications to increase usability of winter gloves to allow easier usage of cellphones.
COM port switch -
Hardware project. Reset a rack of network switches from serial port of a computer.
Ebook Prestigio Libretto charging cradle -
Hardware project. Charging cradle for an ebook.
Electric screwdriver power module -
A source of low-rpm high-torque power, shared with different devices
Capacitor ESR meter -
Hardware project. Measuring instrument for capacitor ESR.
Ethernet Keychain Tester -
Hardware project. Very simple keychain-sized Ethernet port activity tester.
RF field strength indicator -
Indicator of electromagnetic field strength
100 megaohm resistors -
High-voltage, 100-megaohm resistors
Homemade thermal fuse -
Hardware project, part. Cheap semi-resetable thermal fuse.
Hot air blower -
Hardware project, tool. Hot air generator made from a hairdryer.
IrDA monitor -
Hardware project. Patch for an USB IrDA dongle to show the communication on human-visible LEDs.
Isolated AC power supply -
Hardware project. Isolated AC power supply with switchable output voltage.
Keychain-sized Ethernet loopback adapter
Keychain-sized microUSB cable
DC signal level shifter -
Hardware project. Used for shifting signal levels.
Lightbulb Limiter -
Hardware project. Lightbulb device for current-limiting of mains devices
Lightbulb Limiter High-Power -
High-power current limiter and load
Lighted power cable -
Hardware project. Low-voltage power cable with built-in power indicator
Light table -
Hardware project. Light table from a LCD panel.
Luka EV motor test jig -
Jig for easier wiring modification for motor and controller, for through-controller charging
Nokia battery hack -
Hardware project. Adapter to feed a Nokia 3310/3410 from 5V DC without internal battery.
Zero-standby charger -
Hardware project. Phone charger for Nokia E71 with mains auto-disconnect.
Cellphone power hack -
Nokia E71 microUSB power hack
Multidrop IEC power cable -
Saving space and mess with powering more tools from one cable
PancakeGeiger Mk1 -
High-sensitivity Geiger counter
Nokia E61 casemods -
Hardware project. Small modifications to increase usability of Nokia E61.
Irish-European phone charger -
Hardware project. Phone charger modified to work in Ireland and continental Europe without need of an adapter.
Cellphone PhoneOn -
Hardware project. Device to keep a cellphone powered on.
Portable high-capacity 5V charger
Relay Powerstrip -
Hardware project. Computer-controlled power strip, for switching up to 3 devices, for home automation system.
Low-power supply 2kV -
Adjustable power supply of 2100 volts, few tens of milliamps
Remote RESET -
Hardware project. Reset a computer from serial port of another computer.
USB Room Light -
Hardware project. USB-controllable room light.
Model servo controller -
Hardware project. A controller for four RC servos.
Function generator with XR2206 -
Square, triangle, sine, and white/pink noise generator with XR2206 chip
Simple hot plate -
Hot plate made from a clothes iron and a bimetallic thermostat
Small power supply -
Pocket-sized portable regulated power supply
MOT spot welder -
Hardware project. Spot welder made from a microwave oven transformer.
TDCS unit -
Transcranial Direct Current Stimulator
Test tube rack, lasercut -
Test tube rack, parametrically generated, laser cut, whole toolchain described
Thermochromic breadboard -
A breadboard with visual indication of overheating of the parts.
Thermochromic Power Strip -
A power strip with visual indication of overheating.
Water-bath kettle -
Hardware project. Temperature-stabilized water bath made from a decommissioned electric kettle.
Small USB camera battery charger -
Dual-standard USB camera battery charger, built into a TicTac candy box
Triac regulator -
Hardware project. A triac regulator for lightbulbs, heaters and brushed AC motor speed.
Triac Switch -
Hardware project. Solid-state relay from discrete parts.
Universal Powerstrip -
Hardware project. Power strip modified to use standard power cords.
UV LED lamp 5W -
UV-A LED lamp, 5 watts, 400 nm
UV germicidal lamp -
UV germicidal lamp, 254 nm, 8W
FH9999 wattmeter mod -
Hardware project. Reverse-engineered wattmeter, hack for pulse output
IPX over VPN -
Documentation for IPX over VPN
Jig: quick-attach wire clamp
Fridge magnets from old keyboards
LRC file indexer -
a simple semiautomatic timestamper for LRC lyrics files
Camera wood screw -
Screw for mounting a camera to any wooden object
Coffee grinder electric screwdriver adapter -
Adapter to semiautomate coffee grinding
Color-coded drill bits -
How to dramatically lower the time spent searching for the proper drill bit diameter
Drill press collet -
Collet for a drill press to hold the Morse taper in for milling
Drink can halogen lamps -
Simple 12V halogen lamps for machining tools
High-visibility tools -
How to dramatically lower the time spent searching for often-used tools in the workshop
Magnetic door lock -
Hard-drive magnet used to keep door staying closed, while being easily opened.
Cache in a bolt -
Spy toy - secret cache inside a bolt
MicroSD-card spy bolt -
Hollow bolt with internal cavity large enough for a microSD card
Step drill bit hex shank adapter -
1/4" hex adapter for a step drill bit
Tripod bolt adapter -
1/4"-to-M8 bolt adapter
Repairing a broken vise -
Attempt to bolt and then weld a cracked cast iron vise
Demo application for an email web-bug setting.
Repairing resistance wires -
Hardware project, method. Repaing resistance wires.
Case labels -
Simple, good-looking labels for devices
Connector repairs -
Simple method for making connector bodies and strain reliefs
Method under development: EDM machining of circuitboards -
Electrical discharge machining of circuitboards
Salvaging ferrite cores -
Hardware project, method. Disassembling potted ferrite transformers.
Salvaging LCD polarizers -
Hardware project, method. Disassembling LCD panels, salvaging polarizer films
Salvaging lead from batteries -
Hardware project, method. Disassembling sealed lead-acid batteries, salvaging lead plates
Li-poly overdischarge protection -
Very simple, very cheap lithium battery overdischarge protection circuit
T-shirt bleach stenciling -
Using cardboard laser-cut stencils for making t-shirt patterns
VU meters reuse -
How to reuse cheap VU meters as indicator-grade voltmeters and ammeters
Cheating YouTube region enforcement -
Method: Cheating YouTube region enforcement
a cheap homemade microphotography device.
Intended for aiding microelectronics reverse engineering and for home science.
12V-to-USB charger -
Hardware project. Reverse-engineering of an off-the-shelf car USB charger, adaptation of connectors.
Repair and mod of a bathroom light -
Power supply replacement and additional switch for a bathroom light
Canon Powershot A2600 internal charger -
Canon Powershot A2600 internal battery charger and external power supply
Modifications of headsets, replaceable cords -
Replaceable cords for headsets
K40-III laser z-space increase -
Mod of the "Blue Horror" to allow cutting tall objects
K40-III laser lens mount mod -
Mod of the "Blue Horror" lens holder to keep the lens centered
Laptop cooling hack -
Thinkpad R60 cooling hack
DS1052D oscilloscope fan silencing -
Replacement of a fan in the DS1052D oscilloscope with a quieter one
DS1052D oscilloscope probe holders -
Holders for scope probes and their cables for easy portability
Modifications of a soldering iron -
Power socket replacement and thermal insulation for a soldering iron
Stereomicroscope modifications -
Modifications of a stereomicroscope
Externally powered USB hub -
Simple modification of a USB hub to run from external power
Battery-to-USB powered soldering iron conversion -
Modification of a battery powered soldering iron to a USB powered variant
A set of labels declaring independence and sovereignity of person, thoughts, and property within the European Union
A very simple PHP front-end for a barcode generator. Shows barcode images.
a very simple replacement for /usr/sbin/sendmail for systems
not requiring their own MTA but needing to send a mail outside time to time.
An external mail relay is required.
Repair of an office armchair -
Mechanical repair of a delaminated plywood of an armchair
Repair of a guitar -
Mechanical repair of a broken neck of a guitar
Repair of a hairdryer -
Repair and reverse engineering of a broken hair dryer
Repair of kitchen fork -
Silver-brazing of a broken kitchen fork
Repair of solar charger -
Disassembly and repair of a mechanically damaged solar charger
Repair of broken strainer -
Welding broken handles on an Ikea stainless strainer
Repairs of a Thinkpad R60 -
Mechanical repairs of a laptop
Battery replacement in APC Back-UPS RS800 -
Replacement of sealed lead-acid batteries in APC Back-UPS RS800
Canon Powershot A2600 -
Canon Powershot A2600 disassembly and notes
Reverse engineering: EuroLite 15W CFL
DRSB-01 Geiger Counter review -
A review of a Russian DRSB-01 Geiger counter
Mivvy MIDroid Q751 -
Reverse engineering and information: Mivvy MIDroid Q751
MP4 Watch -
Reverse engineering: MP4 Watch, cable, pinouts, documentation
Narex drill speed regulator -
Reverse engineering: Narex drill speed regulator
Nikon S51c -
Reverse engineering: Nikon S51c, cables, pinouts, documentation
Nokia HS47 handsfree -
Reverse engineering: Nokia HS47 handsfree, schematics pinouts, documentation
Reverse engineering: Remote-control headset
Spy Pen -
Reverse engineering: Spy Pen, its behavior, structure, file formats
Wintex TD2200 -
Reverse engineering: Wintex TD2200, cable, serial protocol
618 TYPE stun gun, reverse-engineered schematics -
A schematics of Chinese "618 TYPE" paralyzer/stun gun
BR-800TYPE stun gun, reverse-engineered schematics -
A schematics of Chinese "BR-800TYPE" paralyzer/stun gun
URL shortener -
A very simple URL shortener
SMTP ReIdentify -
a simple SMTP microdaemon for rewriting the mail headers and envelope on recipient-by-recipient basis
A simple system for testing UDP port forward for SpeakFreely
8control, a utility suite for controlling of OctoPrint server
BMP 2 laser tool -
adjusts circuitboard bitmaps for MoshiDraw laser
OpenSCAD-DXF-MoshiDraw tool -
Enhanced functionality for picocom
QR-code laser stencil generator -
Generate DXF or OpenSCAD script for laser cutting a stencil for QR-code
Tactical shoelaces -
Paracord shoelaces, for extra-heavy tensile strength
An improvised tea cooling device. To make tea drinkable quicker.
a simple online thermometer. Registering temperature every 5 minutes from April 2003.
Extremely simple hardware. Based on SMT160-30.
Floppy thumbdrive -
Hardware project. Floppy disk modified into a flash disk container.
Hardware project, tool. Milliohmmeter measurement adapter.
A simple commandline unit convertor.
Kuchofuku air conditioned shirt -
Knockoff of "kuchofuku" air conditioned shirt with built-in fans
Few tools for diagnosing HTTP connections
A simple mail classifier for quick identification of bounce messages and executable code.
Intended for use within procmail.
Xeltek Superpro 280U -
Xeltek Superpro 280U tips and tricks